The structural quality requirements of the lipstick tube?

Lipstick is the general term for all lip makeup. As a skin care product, the biggest feature of lotion pump lotion is that it has a high water content, which can instantly moisturize the skin and replenish moisture for dry skin. In addition, the emulsion can form a light and breathable protective film on the surface of the skin, which can prevent moisture loss and play an excellent moisturizing effect. Therefore, compared with the pure hydrating lotion, the lotion is more suitable for use in the dry season. Lipsticks include lipsticks, lip sticks, lip glosses, lip glazes, etc., which can make lips ruddy and shiny, moisturize and protect lips, increase facial beauty and correct lip contours. It is a product that can set off the lipstick. It is a lipstick for wedding dresses. The quality of tube packaging materials is difficult to control because of their complex structure and function. Therefore, the structural quality requirements of the cosmetic packaging material lipstick tube are as follows:

1. The basic structure requirements of the lipstick tube
1. Material quality: it must be processed with the material determined by the contract between the two parties, and must not be installed with improper combination of original and material production.
2. Dimensions: The deviation of the tube height dimension is less than or equal to 0.1mm; it is consistent with the outer cover under appropriate torque, the outer cover is buckled smoothly, and the gap between the outer cover and the tube is less than or equal to 0.1mm. Lotion pump lotion is a liquid cream type skin care product, because it looks pure and white like milk, it is called lotion. The lotion has a good emollient effect and also has a moisturizing effect. It is especially suitable for dry spring and autumn. If the skin is normal, it can also be used in winter. The appearance of lip balm in a lipstick tube is the same as that of lipstick. They are all in stick shape. However, in recent years, new lip balm products have been introduced. Some of them are extruded, and some need to be applied to the lips by hand. The size of the bead fork screw should conform to the design and sealing sample size.
3. Weight: subject to the weight confirmed by both parties or the sealed sample.

Second, the structural requirements of the lipstick tube
1. Cover/bottom opening tension: The opening force should be between 0.2 and 2 kgf.
2. Pull-out force of middle beam and base: should be ≧4 kgf.
3. Rotational blocking force: The rotating torque should be between 0.1N.m and 0.5N.m, and there should be no obvious noise caused by too tight, and if there is a slipping wire after turning to the bottom end, the slipping wire torque should be ≥0.4N.m.
4. Middle beam: Rotate the base, the middle beam must not be eccentric.
5. Tube and cover matching: Compared with the sealing sample, the tube and cover matching is allowed to have a tolerance of 0.5mm. The tube diameter must be matched with the production mold.

Third, the feel requirements of the lipstick tube
The surface of the lipstick tube is smooth to the touch, and it is easy to be elastic when the lipstick tube is rotated, without obvious blockage and stepped feeling.
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